arch/arm/include/asm/arch-sunxi/mmc.h

   1 /*
   2  * (C) Copyright 2007-2011
   3  * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
   4  * Aaron <leafy.myeh@allwinnertech.com>
   5  *
   6  * MMC register definition for allwinner sunxi platform.
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 #ifndef _SUNXI_MMC_H
  12 #define _SUNXI_MMC_H
  13
  14 #include <linux/types.h>
  15
  16 struct sunxi_mmc {
  17         u32 gctrl;              /* 0x00 global control */
  18         u32 clkcr;              /* 0x04 clock control */
  19         u32 timeout;            /* 0x08 time out */
  20         u32 width;              /* 0x0c bus width */
  21         u32 blksz;              /* 0x10 block size */
  22         u32 bytecnt;            /* 0x14 byte count */
  23         u32 cmd;                /* 0x18 command */
  24         u32 arg;                /* 0x1c argument */
  25         u32 resp0;              /* 0x20 response 0 */
  26         u32 resp1;              /* 0x24 response 1 */
  27         u32 resp2;              /* 0x28 response 2 */
  28         u32 resp3;              /* 0x2c response 3 */
  29         u32 imask;              /* 0x30 interrupt mask */
  30         u32 mint;               /* 0x34 masked interrupt status */
  31         u32 rint;               /* 0x38 raw interrupt status */
  32         u32 status;             /* 0x3c status */
  33         u32 ftrglevel;          /* 0x40 FIFO threshold watermark*/
  34         u32 funcsel;            /* 0x44 function select */
  35         u32 cbcr;               /* 0x48 CIU byte count */
  36         u32 bbcr;               /* 0x4c BIU byte count */
  37         u32 dbgc;               /* 0x50 debug enable */
  38         u32 res0[11];
  39         u32 dmac;               /* 0x80 internal DMA control */
  40         u32 dlba;               /* 0x84 internal DMA descr list base address */
  41         u32 idst;               /* 0x88 internal DMA status */
  42         u32 idie;               /* 0x8c internal DMA interrupt enable */
  43         u32 chda;               /* 0x90 */
  44         u32 cbda;               /* 0x94 */
  45         u32 res1[26];
  46 #if defined(CONFIG_SUN6I) || defined(CONFIG_SUN8I)
  47         u32 res2[64];
  48 #endif
  49         u32 fifo;               /* 0x100 (0x200 on sun6i) FIFO access address */
  50 };
  51
  52 #define SUNXI_MMC_CLK_POWERSAVE         (0x1 << 17)
  53 #define SUNXI_MMC_CLK_ENABLE            (0x1 << 16)
  54 #define SUNXI_MMC_CLK_DIVIDER_MASK      (0xff)
  55
  56 #define SUNXI_MMC_GCTRL_SOFT_RESET      (0x1 << 0)
  57 #define SUNXI_MMC_GCTRL_FIFO_RESET      (0x1 << 1)
  58 #define SUNXI_MMC_GCTRL_DMA_RESET       (0x1 << 2)
  59 #define SUNXI_MMC_GCTRL_RESET           (SUNXI_MMC_GCTRL_SOFT_RESET|\
  60                                          SUNXI_MMC_GCTRL_FIFO_RESET|\
  61                                          SUNXI_MMC_GCTRL_DMA_RESET)
  62 #define SUNXI_MMC_GCTRL_DMA_ENABLE      (0x1 << 5)
  63 #define SUNXI_MMC_GCTRL_ACCESS_BY_AHB   (0x1 << 31)
  64
  65 #define SUNXI_MMC_CMD_RESP_EXPIRE       (0x1 << 6)
  66 #define SUNXI_MMC_CMD_LONG_RESPONSE     (0x1 << 7)
  67 #define SUNXI_MMC_CMD_CHK_RESPONSE_CRC  (0x1 << 8)
  68 #define SUNXI_MMC_CMD_DATA_EXPIRE       (0x1 << 9)
  69 #define SUNXI_MMC_CMD_WRITE             (0x1 << 10)
  70 #define SUNXI_MMC_CMD_AUTO_STOP         (0x1 << 12)
  71 #define SUNXI_MMC_CMD_WAIT_PRE_OVER     (0x1 << 13)
  72 #define SUNXI_MMC_CMD_SEND_INIT_SEQ     (0x1 << 15)
  73 #define SUNXI_MMC_CMD_UPCLK_ONLY        (0x1 << 21)
  74 #define SUNXI_MMC_CMD_START             (0x1 << 31)
  75
  76 #define SUNXI_MMC_RINT_RESP_ERROR               (0x1 << 1)
  77 #define SUNXI_MMC_RINT_COMMAND_DONE             (0x1 << 2)
  78 #define SUNXI_MMC_RINT_DATA_OVER                (0x1 << 3)
  79 #define SUNXI_MMC_RINT_TX_DATA_REQUEST          (0x1 << 4)
  80 #define SUNXI_MMC_RINT_RX_DATA_REQUEST          (0x1 << 5)
  81 #define SUNXI_MMC_RINT_RESP_CRC_ERROR           (0x1 << 6)
  82 #define SUNXI_MMC_RINT_DATA_CRC_ERROR           (0x1 << 7)
  83 #define SUNXI_MMC_RINT_RESP_TIMEOUT             (0x1 << 8)
  84 #define SUNXI_MMC_RINT_DATA_TIMEOUT             (0x1 << 9)
  85 #define SUNXI_MMC_RINT_VOLTAGE_CHANGE_DONE      (0x1 << 10)
  86 #define SUNXI_MMC_RINT_FIFO_RUN_ERROR           (0x1 << 11)
  87 #define SUNXI_MMC_RINT_HARD_WARE_LOCKED         (0x1 << 12)
  88 #define SUNXI_MMC_RINT_START_BIT_ERROR          (0x1 << 13)
  89 #define SUNXI_MMC_RINT_AUTO_COMMAND_DONE        (0x1 << 14)
  90 #define SUNXI_MMC_RINT_END_BIT_ERROR            (0x1 << 15)
  91 #define SUNXI_MMC_RINT_SDIO_INTERRUPT           (0x1 << 16)
  92 #define SUNXI_MMC_RINT_CARD_INSERT              (0x1 << 30)
  93 #define SUNXI_MMC_RINT_CARD_REMOVE              (0x1 << 31)
  94 #define SUNXI_MMC_RINT_INTERRUPT_ERROR_BIT      \
  95         (SUNXI_MMC_RINT_RESP_ERROR |            \
  96          SUNXI_MMC_RINT_RESP_CRC_ERROR |        \
  97          SUNXI_MMC_RINT_DATA_CRC_ERROR |        \
  98          SUNXI_MMC_RINT_RESP_TIMEOUT |          \
  99          SUNXI_MMC_RINT_DATA_TIMEOUT |          \
 100          SUNXI_MMC_RINT_VOLTAGE_CHANGE_DONE |   \
 101          SUNXI_MMC_RINT_FIFO_RUN_ERROR |        \
 102          SUNXI_MMC_RINT_HARD_WARE_LOCKED |      \
 103          SUNXI_MMC_RINT_START_BIT_ERROR |       \
 104          SUNXI_MMC_RINT_END_BIT_ERROR) /* 0xbfc2 */
 105 #define SUNXI_MMC_RINT_INTERRUPT_DONE_BIT       \
 106         (SUNXI_MMC_RINT_AUTO_COMMAND_DONE |     \
 107          SUNXI_MMC_RINT_DATA_OVER |             \
 108          SUNXI_MMC_RINT_COMMAND_DONE |          \
 109          SUNXI_MMC_RINT_VOLTAGE_CHANGE_DONE)
 110
 111 #define SUNXI_MMC_STATUS_RXWL_FLAG              (0x1 << 0)
 112 #define SUNXI_MMC_STATUS_TXWL_FLAG              (0x1 << 1)
 113 #define SUNXI_MMC_STATUS_FIFO_EMPTY             (0x1 << 2)
 114 #define SUNXI_MMC_STATUS_FIFO_FULL              (0x1 << 3)
 115 #define SUNXI_MMC_STATUS_CARD_PRESENT           (0x1 << 8)
 116 #define SUNXI_MMC_STATUS_CARD_DATA_BUSY         (0x1 << 9)
 117 #define SUNXI_MMC_STATUS_DATA_FSM_BUSY          (0x1 << 10)
 118
 119 #define SUNXI_MMC_IDMAC_RESET           (0x1 << 0)
 120 #define SUNXI_MMC_IDMAC_FIXBURST        (0x1 << 1)
 121 #define SUNXI_MMC_IDMAC_ENABLE          (0x1 << 7)
 122
 123 #define SUNXI_MMC_IDIE_TXIRQ            (0x1 << 0)
 124 #define SUNXI_MMC_IDIE_RXIRQ            (0x1 << 1)
 125
 126 struct mmc *sunxi_mmc_init(int sdc_no);
 127 #endif /* _SUNXI_MMC_H */